/**
 * Created by Conor Xie on 2018/4/1.
 */
export default () => 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
  const r = Math.random() * 16 | 0
  const v = c === 'x' ? r : (r & 0x3 | 0x8)
  return v.toString(16)
})
